Miniature rose plant named &#39;Poulpal040&#39;

ABSTRACT

A new miniature rose plant that has abundant, white flowers and attractive foliage. The variety successfully propagates from softwood cuttings and is suitable for year-round production in commercial glasshouses. This new and distinct variety has shown to be uniform and stable in the resulting generations from asexual propagation.

BOTANICAL DESIGNATION

Rosa hybrid

VARIETY DENOMINATION

‘Poulpal040’

SUMMARY OF THE INVENTION

The present invention constitutes a new and distinct variety of miniature rose plant which originated from a controlled crossing between the female seed parent, an unnamed seedling, and the male pollen parent, also an unnamed seedling.

The two parents were crossed during the summer of 2006 and the resulting seeds were planted in a controlled environment in Fredensborg, Denmark. The new variety, named ‘Poulpal040’, originated as a single seedling from the stated cross.

The new variety may be distinguished from its male pollen parent and female seed parent primarily by flower coloration and growth habit.

The objective of the hybridization of this rose variety for commercial culture was to create a new and distinct variety with unique qualities, such as:

1. Uniform and abundant white flowers;

2. Vigorous and compact growth;

3. Year-round flowering under glasshouse conditions;

4. Suitability for production from softwood cuttings in pots;

5. Durable flowers and foliage which make a variety suitable for distribution in the floral industry.

This combination of qualities is not present in previously available commercial cultivars of this type, known to the inventor, and distinguish ‘Poulpal040’ from all other varieties of which we are aware.

As part of the rose development program, Mogens N. Olesen germinated the seeds from the aforementioned hybridization and conducted evaluations on the resulting seedlings in a controlled environment in Fredensborg, Denmark. ‘Poulpal040’ was selected by the inventor as a single plant from the progeny of the hybridization in 2006.

Asexual reproduction of ‘Poulpal040’ by cuttings was first done by Mogens N. Olesen in the nursery in Fredensborg, Denmark in 2007. This initial and other subsequent propagations conducted in controlled environments have demonstrated that the characteristics of ‘Poulpal040’ are true to type and are transmitted from one generation to the next.

DESCRIPTION OF THE DRAWING

The accompanying color illustration shows as true as is reasonably possible to obtain in color photographs of this type, the typical characteristics of the buds, flowers, leaves, and stems, of ‘Poulpal040’. Specifically illustrated in the drawing are flowers at various stages of development, flower in parts, leaves, and stems.

DETAILED DESCRIPTION OF THE VARIETY

The following is a description of ‘Poulpal040’, as observed in its growth in a field nursery in Corvallis, Oreg. Observed plants are 2 years of age and were cultivated on their own roots. Color references are made using The Royal Horticultural Society (London, England) Colour Chart, 2001, except where common terms of color are used.

For a comparison, several physical characteristics of the rose variety ‘Poulgret’, U.S. Plant Pat. No. 10,729 are compared to ‘Poulpal040’ in Chart 1.

CHART 1 ‘Poulpal040’ ‘Poulgret’ General flower color 25 mm 18 to 22 mm Flower diameter 70 mm average 50 to 60 mm Coloration of the Yellow-Green Group Green Group 138A to underside of sepals 144A with strong 138B intonations of Greyed- Red Group 178A.

-   Flower and flower bud:     -   -   Blooming habit.—Continuous.         -   Flower bud.—Size: Upon opening, 25 mm in length from base of             receptacle to end of bud. 16 mm in diameter. Bud form: Bud             color: As sepals unfold, petals are green white. Sepals:             Under Surface: Color: Yellow-Green Group 144A with strong             intonations of Greyed-Red Group 178A. Texture: Smooth.             Shape: Apex: Cirrhose. Base: Flat at union with receptacle.             Margins: Margins have moderate to strong foliaceous             appendages on three of the five sepals. Size: 45 to 50 mm             long by 8 mm wide. Receptacle: Surface Texture: Smooth.             Shape: Funnel shaped. Size: 8 mm tall and 8 mm wide. Color:             Yellow Green Group 144A. Pedicel: Surface: Somewhat rough             with many stipitate glands. Length: 25 mm on average.             Diameter: 3 to 4 mm. Color: Yellow-Green Group 144A with             anthocyanic pigments the color of Greyed-Orange Group 166B.             Strength: Medium strength. Borne: Singly.         -   Flower bloom.—Fragrance: None. Duration: As a pot plant,             flowers last up to 28 days. Form: General shape is an open             cup with petals that curve outward from the center. Form:             General shape is an open cup with petals that curve outward             from the center.         -   Color.—General Tonality: On open flower, pure white. Upon             opening, petals: Petals are pure white on the upper surface             and pure white on the lower surface. After opening, petals:             Petals are pure white on the upper surface and pure white on             the lower surface.         -   Petals.—Petal Reflex: Weak. Margin: Entire, uniform. Shape:             Generally broad and elliptic. Apex shape: Rounded. Base             shape: Acute. -   Plant:     -   -   Plant growth.—Upright. Plants are 70 to 75 cm in height, and             60 cm wide.         -   Stems.—Color: Juvenile growth: Yellow-Green Group 146C with             strong anthocyanic intonations the color of Greyed-Purple             Group 183C. Mature growth: Yellow-Green Group 146B. Length:             Canes are 40 cm from the base of the plant to the flowering             portion. Diameter: 6 to 7 mm. Internodes: On mature canes,             there is an average distance of 32 mm between nodes. Surface             Texture: Young and mature wood is rough with a moderate             quantity of small prickles.         -   Large prickles.—Incidence: 8 per 10 cm of stem. Size:             Average length, 7 mm. Color: Juvenile prickles are             Greyed-Purple Group 183B. Mature prickles are Greyed-Orange             Group 164C. Shape: Concave on the upper and lower surface.         -   Plant foliage.—Compound Leaf size: 170 mm (l) by 115 mm (w).             Quantity: 2 leaves per 10 cm of stem. Color of juvenile             foliage: Upper Leaf Surface: Yellow-Green Group 146B. Lower             Leaf Surface: Greyed-Red Group 178A. Color of mature             foliage: Upper Leaf Surface: Yellow-Green Group 146A. Lower             Leaf Surface: Yellow-Green Group 146B.         -   Plant leaves and leaflets.—Stipules: Size: About 20 mm in             length. Shape: Linear, slightly broad based with outward             extending apecies. Margins: Finely serrated. Color:             Yellow-Green Group 144A. Petiole: Length: 33 mm on average.             Diameter: About 2 mm. Upper surface: Greyed-Purple Group             185A. Lower surface: Yellow-Green Group 144B and             Greyed-Purple Group 185A. Small prickles observed. Rachis:             Length: 50 mm on average. Diameter: About 2 mm. Upper             surface: Greyed-Purple Group 185A. Lower surface:             Yellow-Green Group 144B and Greyed-Purple Group 185A. Small             prickles observed. Leaflet: Number of leaflets: 5 on normal             leaves in middle of the stem. Size: 65 mm in length by 40 mm             wide. Margin: Serrate. General Shape: Elliptical. Apex             Shape: Mucronate. Base Shape: Round. Texture: Smooth.             Arrangement: Odd pinnate. Venation: Reticulate. Leaf Gloss:             Moderately glossy.         -   Cold hardiness.—The variety is tolerant to USDA Cold             Hardiness Zone 6.         -   Heat tolerance.—The variety has been found to be suitable             for climate conditions found in the American Horticulture             Society heat zone 7. 

1. A new and distinct variety of rose plant of the miniature class named ‘Poulpal040’, substantially as illustrated and described herein, due to its abundant, white flowers, vigorous growth, compact habit, suitability for production from softwood cuttings in pots, and durable flowers and foliage that make the variety suitable for distribution in the floral industry. 